Plate heat exchanger with water storage tank

Abstract

The invention discloses a plate heat exchanger with a water storage tank. The plate heat exchanger comprises a heat exchange body, a water tank body and a water outlet pipe, wherein the heat exchangebody is provided with a bathroom water flow channel, a heating water flow channel, a bathroom water inlet channel, a bathroom water outlet channel, a heating water inlet channel and a heating water outlet channel; the water tank body comprises a second plate body, a water tank plate set, a third plate body and a fourth plate body; the water tank plate set is provided with a first flow channel, a second flow channel, a first inlet channel, a first outlet channel, a second inlet channel and a second outlet channel; the second plate body is provided with a communication opening; the third plate body is provided with a first water inlet, a first water outlet, a second water inlet and a second water outlet; a first fluid channel and a second fluid channel are arranged between the fourth plate body and the third plate body; the water outlet pipe is inserted in a communication channel formed by the bathroom water outlet channel, the communication opening and the first water inlet channel in amatched manner; and a circulation gap is formed between the communication channel and the water outlet pipe. By means of the heat exchanger, the problem that bathroom water is high and low can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of heat exchange equipment, in particular to a plate heat exchanger with a water storage tank. Background technique [0002] When the gas water heater or wall-hung boiler is turned off during normal use, the waste heat of the heat exchanger will continue to heat the water, but the water is not flowing at this time, so the water temperature rises very quickly. For example, the normal setting temperature is 45 degrees. After the water is turned off, the burner will no longer burn, and the water will no longer flow. The waste heat of the heat exchanger can heat the water in the heat exchanger to 55 degrees or even higher. When the hot water is turned on again, you can feel that it is higher than the set temperature. temperature (45 degrees), if the temperature is too high, it may burn the skin, etc.; at the same time, when the water is boiled again, the high-temperature water stored in the heat exchanger will f...

AI Technical Summary

Problems solved by technology

[0002] When the gas water heater or wall-hung boiler is turned off during normal use, the waste heat of the heat exchanger will continue to heat the water, but the water is not flowing at this time, so the water temperature rises very quickly. For example, the normal setting temperature is 45 degrees. After the water is turned off, the burner will no longer burn, and the water will no longer flow. The waste heat of the heat exchanger can heat the water in the heat exchanger to 55 degrees or even higher. When the hot water is turned on again, you can feel that it is higher than the set temperature. temperature (45 degrees), if the temperature is too high, it may burn the skin, etc.; at the same time, when the water is boiled again, the high-temperature water stored in the heat exchanger will flow out immediately and it will be cold water. At this time, it is difficult for the gas water heater to reduce the temperature in a short time Heating to the set temperature, so the use temperature at this time will be lower than the set temperature, and then the temperature will slowly return to the set temperature after a period of time; there is a period of time higher than the set temperature during this use And a time period below the set temperature, the temperature fluctuates, which affects the user experience

[0003] In view of the above problems, the authorized Chinese patent of a plate heat exchanger with water storage function (CN208476053U) proposes a solution, which welds a water storage cavity on the traditional plate heat exchanger, and passes through the water storage cavity The body stores bathroom water, so that when the gas water heater or wall-hung boiler is shut down or restarted, the water above the set temperature or the water below the set temperature will mix with the water in the water storage cavity to form relatively stable water. Thereby effectively avoiding the problem of the fluctuating water in the bathroom; however, the water storage chamber of the patent is welded by the semi-closed cavity with the opening and the back plate of the plate heat exchanger, but the semi-closed cavity with the opening is manufactured It is more difficult, and at the same time, the welding of the semi-closed cavity and the back plate is also more difficult, resulting in relatively high manufacturing costs, which is not conducive to mass production

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